> -----Original Message----- > From: Michael Gratton [mailto:m...@vee.net] > Sent: Thursday, July 20, 2017 12:16 > To: Yang, Rong R <rong.r.y...@intel.com> > Cc: beignet@lists.freedesktop.org > Subject: Re: [Beignet] Kaby lake perf worse than Skylake? > > Hi, > > On Thu, Jul 20, 2017 at 1:30 PM, Yang, Rong R <rong.r.y...@intel.com> > wrote: > > Is the quantity of infrared data they process same? Is it affected by > > fps? Has you try other method, such as the profiling time. Actually, > > in beignet, the Kabylake is almost same as Skylake. > > The sensor operates at a fixed frame rate (30 fps), so the data processed was > the same in both cases. > > I haven't tried profiling the process yet, but may look into that. Is there > any > tools available for profiling OpenCL code?
You could use the OpenCL api clGetEventProfilingInfo to get the OpenCL enqueue functions profiling information. > > I expected Kabylake the performance would be about the same or better > than Skylake, which is why I was surprised that it seems to perform not as > well for this task. To compare Kabylake and Skylake, you'd better fix them to the same frequency, by setting the /sys/kernel/debug/dri/0/i915_max_freq and /sys/kernel/debug/dri/0/i915_min_freq to the same value. > > //Mike > > -- > ⊨ Michael Gratton, Percept Wrangler. > ⚙ <http://mjog.vee.net/> > _______________________________________________ Beignet mailing list Beignet@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/beignet
